Transcript for 'It came outta nowhere': NBA player speaks about being tased by police
Next, from Milwaukee, reaction of police body cam video of an NBA player, sterling brown, in an incident that escalated from a parking violation. Police accused brown of aggressive behavior. The police chief and the mayor have both apologized, and tonight, we hear from sterling brown for the first time. ABC's Alex Perez is in Milwaukee. Taser, taser, taser! Reporter: Just a day after the release of that disturbing video showing tasing of a sterling brown, the Milwaukee bucks player sitting down for an exclusive interview with robin Roberts, talking about that moment. And physically, mentally, being tasered like that, I mean, how did it impact you? It was a shock. It came out of nowhere. I tensed up instantly. Emotionally, like, man, I crust got tased. How you doing? Got a driver's license? Reporter: That confrontation with officers after a he illegally parked his car outside a Walgreens. I asked you to back up and you did not do it. Reporter: In the police report, officers claim brown became "Very aggressive," but the video shows him calmly talking to officers when suddenly -- Take your hands out of your pockets now! I've got stuff in my hands, hold on. Reporter: Officers take him down and tase him. Taser, taser, taser! Any movement I make, they still -- they got me pinned down, so, I couldn't really do anything. I stayed calm, try to get out of the situation. Reporter: Brown plans to file a lawsuit. The police chief here has condemned the actions of the officers involved. He's apologized. Tom? Alex, thank you. And rob bun Roberts will have much more of her exclusive interview with sterling brown first thing in the morning on "Good morning America."
This transcript has been automatically generated and may not be 100% accurate.